CVE-2011-3634 Security feature bypass in n/a

What is CVE-2011-3634?

CVE-2011-3634 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 28 Feb 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

methods/https.cc in apt before 0.8.11 accepts connections when the certificate host name fails validation and Verify-Host is enabled, which allows man-in-the-middle attackers to obtain repository credentials via unspecified vectors.

Weakness: CWE-200

Which versions are affected by CVE-2011-3634?

It affects 2 products.

Products include Canonical Ubuntu Linux, Debian Advanced Package Tool.

How do I fix CVE-2011-3634?

Upgrade to a fixed version.

Is CVE-2011-3634 being exploited?

There is no known exploitation of CVE-2011-3634 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2011-3634, GHSA-rgc6-vjp8-p4rv.